whats the difference between these two

[hellogreg]

can some kind person please point out the difference between these two lens's


Sigma 70-300mm f4-5.6 APO DG Macro

Sigma 70-300mm f4-5.6 DG Macro


thanx in advance

 

[MWHCVT]

The first has APO

In order to attain the highest quality images, the APO lens has been made using special low-dispersion (SLD) glass and is designed to minimize color aberration.
SIGMA's APO zoom lenses minimize color aberration. As the refractive index of glass depends on the wavelength of light, color aberration occurs when different colors form images at different points. This problem often occurs with telephoto lenses, but the Special Low-Dispersion (SLD) glass and Extraordinary Low Dispersion (ELD) used in SIGMA's APO lenses helps to compensate for color aberration, thereby allowing them to produce of sharp images

Source HERE

So in short the first is made with a higher grade of glass for the elements

I hope that this helps

Matt
MWHCVT

 

[hellogreg]

Cheers mate have been thinking about getting something like this to take some shots of birds in the garden but not really sure if it will be any good ....

 

[artyman]

For shooting birds you really need something longer, look at the Sigma 150-500.

 

[hellogreg]

cant afford that and my garden is pretty small everything will be within 20 feet or so

 

[jomike]

I got some OK shots with a Siggy 70-300mm APO. It is best if you have enough light to stop down to f/8ish.

A Nikon 70-300mm VR would be better, they come up here in the classifieds quite often.

Some shots with the Sigma 70-300mm APO and D90:

1.

Dark Capped Bulbul by jomike, on Flickr

2.

European Robin by jomike, on Flickr

3.

Grey Lourie (Go away bird) by jomike, on Flickr

4. "Macro" feature works OK too.

Banded Demoiselle by jomike, on Flickr

 

[doublem1]

Cracking photos there Jomike! Very impressive.